Hey, sorry you're having a bad time.
I have endo, stage 3. I was diagnosed by laparoscopic surgery last year after being fobbed off for over a decade. A Lap is the only way to diagnose I'm afraid, so push for it.
We have ttc for years, no luck, even through IVF. But everyone is different and lots of people with Endo still manage to have babies so I still have hope.
The thing with Endo is that the stage of disease doesn't tend to correlate with the pain. You can have very few patches but be in horrendous pain, or little pain but lots of Endo. Excision by a specialist is the only way to get rid of it, but it'll likely come back eventually.
Also, it's not what you want to hear, but there is no cure. Surgery, pregnancy, hysterectomy- none of these cure it. Hysterectomy will help with adenomyosis, because that's inside the womb, Endo is outside. They may ease symptoms for a while, but they won't cure it. So many people are told that having a baby will cure it, it won't. I don't mean to be a downer or to scare you, but I got so sick of people saying "relax, it'll happen when it happens" that I always feel that it's important for those living through it, to be honest about their stories so that people take it seriously.
My Endo pain only really flares when I'm on my period and my management is codeine/paracetamol/ibuprofen and a hot water bottle.
If you're on Instagram or Facebook there's lots of groups and people to follow that share pain management tips etc so I follow lots of them. It's a cruel disease that needs a lot more awareness and funding.
Do push for a lap though, at least you'll have answers.